'Supergirl': The Worldkillers Unite in "Both Sides Now" Photos

The CW has released new photos for "Both Sides Now", the upcoming thirteenth episode of Supergirl's third season.

In the episode, the DEO manages to capture another Worldkiller, Purity (Krys Marshall), and hope that doing so will provide them with much-needed guidance in their battle against Reign (Odette Annable). However, Purity gets loose, and judging by the photos, which you can check out below, she and Reign will wreak havoc on a National City transit station.

"So far, it's just me from what I know, but it would be cool if I was fighting and had this epic showdown and all of a sudden, my buddies came along to play," Annable said about the possibility of other Worldkillers back in October. "I mean, being bad is good. It's always fun."

If the other Worldkillers do end up coming to Supergirl, it also could hint at the conflict between Reign and Supergirl taking an interesting turn. In the comics, Kara's father has a hand in creating the Worldkillers, which was a decision that he ended up deeply regretting.

Meanwhile, the episode will also bring about a new development for the Legion of Super-Heroes, as their ship gets destroyed and stranded in the present day. Considering the amount of mystery surrounding the Legion right now, there's no telling how that plotline will go.

You can check out the official synopsis for "Both Sides Now" below.

The DEO captures a second Worldkiller, Purity (guest star Krys Marshall). Supergirl (Melissa Benoist) and Alex (Chyler Leigh) use very different methods of interrogation with Purity in the hopes of finding out how to defeat Reign (Odette Annable). However, Purity escapes and attacks the city’s subway tunnels.